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Experimental and First principle calculation of Co_xNi_{(1-x)}Si solid solution structural stability
J. Teyssier, R. Viennois, J. Salamin +2
We report the investigation of the structural stability of CoNiSi monosilicides for . As CoSi crystallizes in the FeSi-type structure (B20) and NiSi is stable…
Preeminent role of the Van Hove singularity in the strong-coupling analysis of scanning tunneling spectroscopy for two-dimensional cuprates
Giorgio Levy de Castro, Christophe Berthod, Alexandre Piriou +2
In two dimensions the non-interacting density of states displays a Van Hove singularity (VHS) which introduces an intrinsic electron-hole asymmetry, absent in three dimensions. We…
Charge carrier interaction with a purely electronic collective mode: Plasmarons and the infrared response of elemental bismuth
Riccardo Tediosi, N. P. Armitage, E. Giannini +1
We present a detailed optical study of single crystal bismuth using infrared reflectivity and ellipsometry. Colossal changes in the plasmon frequency are observed as a function of…